Vauxhall Vivaro "check anti pollution system" Downstream Nox sensor fault
Investigating & Fixing "Check anti pollution system" warning on dash & engine warning light on display. DF138 thermo-plunger number 2 relay control circuit malfunction stored in engine ECU & DCT3203 Downstream nitrogen oxide sensor performance out of range stored in Urea dosing unit ECU. 2017 Vauxhall Vivaro 1.6 cdti same as Renault trafic. Fault fixed by replacing the number 2 (downstream) NOx sensor.
No.1 NOx Sensor Ebay - https://ebay.us/MWKngV
No.2 NOx Sensor Ebay - https://ebay.us/UCUH0N
Check Euro car parts - https://tidd.ly/3lIO7xA (use discount codes on site)
Tools used :
Topdon Phoenix lite 3 - https://diydaly.co.uk/products/phoeni...
Draper socket set - https://amzn.to/2FdUEjf
22mm Spanner - https://amzn.to/2Rvkd1O
22mm Crows foot - https://diydaly.co.uk/products/nox-22...
WD40 - https://amzn.to/3oiaIRE
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